Copper prices slipped on Thursday, easing off a recent six-month high as fresh metal flowed back into London Metal Exchange (LME) warehouses. The move calmed worries that the market was running short of available supply, though a softer US dollar helped cushion the fall.
Three-month copper on the LME settled 0.4% lower at $13,988 per metric ton, according to Reuters. The decline came as LME inventories rose by another 3,950 tons, and so-called on-warrant stocks—metal that is actually available to deliver against contracts—jumped more than 50% since the start of the week. Even so, those stocks remain less than half of what they were three months ago.
Why copper had been climbing
Copper had rallied to a six-month high in recent sessions, driven by fears that the exchange was running low on stockpiles. That anxiety was stoked by a steady drawdown in LME warehouses, which raised concerns about a potential squeeze on buyers needing physical metal.
The latest inventory build suggests some of that tightness is easing, at least for now. But the fact that on-warrant stocks are still well below their levels from three months ago means the market remains sensitive to any further supply disruptions or demand surprises.
Copper is often seen as a bellwether for global economic health because it is used widely in construction, electronics, and renewable energy infrastructure. When inventories fall sharply, it can signal strong demand or supply constraints, both of which tend to push prices higher.
The dollar's role
Helping to limit Thursday's decline was a weaker US dollar. The greenback slipped after the US Treasury announced plans to step up its buybacks of longer-dated bonds, a move aimed at calming volatility in the Treasury market and easing upward pressure on yields.
A softer dollar tends to support commodity prices, including copper, because it makes dollar-denominated metals cheaper for buyers using other currencies. That dynamic played out in broader markets as well, with Asian stocks climbing and the dollar slipping on the news.
The Treasury's move is part of a broader effort to keep bond markets functioning smoothly. It follows the Federal Reserve's decision to hold interest rates steady, which has also helped ease concerns about aggressive policy tightening.
What it means for investors
For everyday investors, the copper price is more than just a number on a screen. It can influence the earnings of mining companies, the cost of goods that use copper, and even the performance of broader equity markets, particularly in resource-heavy economies.
Thursday's pullback is a reminder that commodity prices can be volatile, driven by a mix of supply data, currency moves, and macroeconomic policy. The fact that copper is still near recent highs suggests the market remains watchful about supply, even as inventories rebuild.
Investors should also note the connection between copper and the dollar. When the dollar weakens, commodities often get a boost, and vice versa. The Treasury's buyback program, along with the Fed's steady stance, could keep the dollar under pressure in the near term, which might provide some support for copper and other metals.
However, the bigger question for copper's direction is whether the inventory rebuild continues. If stockpiles keep rising, the supply squeeze narrative could fade, putting downward pressure on prices. If they stall or fall again, the market could quickly return to worrying about shortages.
For now, the metal is caught between two forces: improving supply visibility and a softer dollar. Which one wins out will likely depend on the next few weeks of inventory data and any shifts in global growth expectations.
As always, it's wise to remember that commodity prices are influenced by many factors, and short-term moves don't always reflect long-term trends. For those with exposure to copper through stocks or funds, keeping an eye on LME inventory levels and dollar movements can provide useful context.


